WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
Illustrations
Tool Number/Description
Courtesy of GENERAL MOTORS COMPANY
CH 28662 J 28662 Brake Pedal Effort Gauge
Courtesy of GENERAL MOTORS COMPANY
CH 29532-A J 29532-A Pressure Brake Bleeder, or equivalent